Process of welding copper.



PROCESS OF WELD APILIGATION FILED A. TABET.

' PATENTED JULY 14, 1908.

COPPER.

' ments in Processes of Welding Copper, of

To all whom it may concern:

SAHLIAH ABRAHAM TABET, OF NORFOLK, VIRGINIA.

PRocEss OF WELDING COPPER.

Specification of Letters Patent.

Application filed January 3, 1908. Serial No. 409,169.

Patented July 14, 1908.

Be it known that I, SAHLIAH ABRAHAM TABET, a native of Syria, but having declared my intention of becoming a citizen of i the United States, residing at Norfolk, in the county of Norfolk, State of Virginia, have invented certain new and useful Improvewhich the following is a description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to the art of welding copper and it consists in the method or proc ess disclosed in the following specification and specifically claimed in the clauses of the concluding claim.

I have in'the accompanying drawing illustrated a piece of copper the ends of which are to be welded together by my process as hereinafter disclosed, although it will be understood that my process is applicable to pieces of copper of any form, and that my process is in no way limited to the articular form of the finished article which have selected for the purpose of illustrating my process.

In the drawing, Figure 1 is a pers ective View of a copper rod, the ends whereo are to v be welded together, and Fig. 2 is a cross-section upon the line a-b of Fig. 1.

In the drawing, 1 is a piece of copper rod bent upon itself so as to bring the ends 2 and 3 thereof together as shown. The meeting surfaces of the ends of the rod maybe slightly flattened so as to increase the area of contact as shown in Fig. 2, although this is not ab solutely necessary. I now place a quantity of copper filings, or a quantity of copper finely comminuted by means of any other suitable process, along the meeting surfaces of the ends of the rod to be welded to ether, as shown at 4, together with a suitab e flux,

and I have employed boraX as a flux with satisfactory results. It will be advisable when borax is employed as a flux to place the bore): on the joint before the copper filings and to heat the joint until the water of crystallization is driven off and the boraX melted, after which the copper filings are placed upon the joint. The ends of the rod, with the finely comminuted copper and flux, are now heated until the copper filings are seen to begin to melt and commence to run down into the joint between the ends of the rod, at which time the rod is removed from the heating means and the ends thereof forced together as by means ofrepeated blows upon an anvil as. in the ordinary method of welding iron, whereby a perfect weld will be accomplished between the ends of the rod and the said'ends securely welded together;

By my process as above set forth I am able to weld cop er in an ordinary open fire such as a blac miths forge using. the ordinary fuel usually used by blacksmiths, althou h it will be understood that the metho of heating is not material to the performance of my rocess.

Having thus described my invention and disclosed a way by which it may be performed, I claim and desire to secure by Letters Patent 1 The method of welding copper which consists in placing the pieces to be 'oined together, placing a quantity of fineiy comminuted copper together with a suitable flux along the joint to be formed, heating the joint until the finely comminuted copper melts, and forcing the ends ofsaid pieces together to form a weld.

This s ecification signed and witnessed this 3rd d ay of January A. D. 1908.

S. ABRAHAM TABET. v 

